Electronics Forum | Wed Jul 06 09:51:23 EDT 2005 | Jack
Doug, It always seems easier to fix one or two problems by eye at the time. The real problem comes when the customer wants the same board run again later. You're okay if you saved the corrected placement routine, but if you end up moving the job t
Electronics Forum | Thu Feb 10 11:40:25 EST 2005 | Carol
Hello All, Can somebody direct me to a facility or school or even a business that can offer an x-ray course for Class 3 electronic circuit board population interpretation, as in BGA ball acceptance, connector solderability fill acceptance etc.? Some
Electronics Forum | Wed Feb 23 15:19:49 EST 2005 | Dilbert
I don't work on quads but I can give you some things to look for... Each of the moving axis work off a motor that is controlled by a "drive". Some of these drives have a fault or error output that is connected to the motion controller. One of your
Electronics Forum | Mon Mar 07 10:14:31 EST 2005 | jmedernach
Cellular and PDA architectures employ this technology all the time. You have to be careful with your board supplier as well as with your plugging approach. Leave the via unplugged, I guarantee voids in the solder joint. That leaves us with, "how d
Electronics Forum | Wed Mar 16 09:22:20 EST 2005 | russ
Try varying you conveyor speed as well to increase the dwell time on the wave (touchy, and can easily be overdone). Every no-clean type and process I have ever used will leave some type of residue. They can be minimized but they will always be ther
Electronics Forum | Tue Mar 22 20:33:24 EST 2005 | davef
Q1. What are you guys doing for filled/tented/plugged vias on the BGA site? A2. 2221A, 4.5.1 tells you the vias have to be tented on both sides. Q2. What type of issues can this cause if using no filled/tented/plugged vias on the BGA site? A2. BGA
Electronics Forum | Tue Apr 05 09:27:49 EDT 2005 | russ
These sound like european machines, From what I can tell so far Lead Free capable ovens just mean that they have hotter heating elements, and blower fans that can take the additional heat supposedly. It does not appear to have anything to do with t
Electronics Forum | Thu Apr 21 04:16:17 EDT 2005 | Infinity
Dear all, I am doing some small business selling solder paste, chip capacitors and resistors in China. I am going to expand the existing SMT product line. Can you experts throw in some ideas? For example, what other products would you all think of
Electronics Forum | Fri Apr 22 11:21:42 EDT 2005 | HUH
There are several types of lasers to do laser soldering. Panasonic also has a high intensity light that can solder as well. I've tried em' all and two over whelming things stand out when it comes to this type of soldering. #1 is preheat. It seems
Electronics Forum | Fri Apr 29 08:39:01 EDT 2005 | davef
Few solder paste suppliers recommend freezing solder paste. Check with your supplier for recommendations. Examples are: * In many cases, nothing happens. However, some pastes are susceptible to damage that impairs paste performance. As a consequenc
